Wrapping a bar around rough surface
I would bevel a curve to give it thickness, and have easy control over the curve shape.

Make a curve circle and put it in place. In your case: Shift + c. Shift + a and choose Curve &gt; Circle. Then S 1 4 Enter. Then G Z 2 0 Enter.

Put a Shrinkwrap modifier on the curve and target the knight. Mode: Project, On Surface. Direction: Negative (only)

Press Alt + C and choose Mesh from Curve/Meta/Surf/text. Then press Alt + C again but now choose Curve from Mesh/Text. Changing the curve to a mesh and then the mesh back to a curve Applies the modifier and gives us more vertices on the curve.

In Edit Mode A to select all. then hit F3 (default search key) and type &quot;Set Spline Type&quot; and choose Bezier. Then hit F3 again and type &quot;Set Handle Type&quot; (or press V) and choose Aligned.


(Alternatively you can click on the buttons next to Edit Mode in the header of the 3D Viewport. Curve &gt; Set Spline Type &gt; Bezier. and Control Points &gt; Set Handle Type &gt; Aligned.)

In Object Mode Scale the curve a bit bigger, 1.05 times seems suitable. Then go to Properties &gt; Object Data Properties &gt; Geometry &gt; Bevel, and set the Depth Value to 0.03 m (and maybe increase the Resolution value).



Fine tuning:

Decimate Curve to decrees the amount of vertices. Subdivide to increase them if needed. (Both also easily found by hitting F3 in Edit Mode).
Select vertices and press X or Del and choose Segments if you want an opening in the bar curve.
And of course move the vertices around to get the exact desired shape of the bar. : )
Press Alt + C and choose Mesh from Curve/Meta/Surf/text, if you want a mesh bar in the end.